World Resorts Greece Kos Weather

Kos 7 Days Forecast

15.09
tue
Day
73°F
SE 15 mph
Precip.
6%
Night
75°F
SE 14 mph
Precip.
14%
16.09
wed
Day
73°F
E 6 mph
Precip.
14%
Night
72°F
E 9 mph
Precip.
5%
17.09
thu
Day
72°F
SE 13 mph
Precip.
6%
Night
73°F
SE 23 mph
Precip.
4%
18.09
fri
Day
72°F
S 21 mph
Precip.
4%
Night
75°F
SE 21 mph
Precip.
5%
19.09
sat
Day
73°F
SE 14 mph
Precip.
4%
Night
75°F
SE 12 mph
Precip.
6%
20.09
sun
Day
73°F
SE 13 mph
Precip.
5%
Night
75°F
SE 14 mph
Precip.
7%
21.09
mon
Day
73°F
SE 17 mph
Precip.
7%
Night
77°F
SE 12 mph
Precip.
8%

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 76.2°F. The highest and lowest sea temperatures during the month were 77.5°F and 74.7°F.

Air temperature in Kos, °F

Precipitation total in Kos, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Kos

Sunniest months:
July 31 days
August 31 days
June 29 days
Warmest months:
August 83.0 °F
July 82.7 °F
September 79.0 °F
Warmest sea temp:
August 78.2 °F
September 77.1 °F
July 75.8 °F
Coldest months:
January 57.2 °F
February 57.7 °F
March 59.4 °F
Rainiest months:
January 7 days
December 6 days
February 5 days
Windiest months:
January 17.3 mph
February 16.9 mph
July 16.2 mph

Kos on a weather map

Current weather
07:39
Kos
+73°F
S 14 mph
Feels like: +77°F
Precip.: 14%
Places in Greece:
Name
°F
Athens
+70°F
Bali Gr
+66°F
Zakynthos
+72°F
Corfu
+75°F
Crete
+70°F
Nikiti
+72°F
Paralia Katerini
+68°F
Pefkochori
+73°F
Rhodes
+73°F
Thessaloniki
+68°F
Sithonia
+73°F
Thasos
+64°F
Chalkidiki
+72°F
Hanioti
+73°F
Chania
+73°F
all places
24 Hours Forecast
Kos
Local time: 07:39
September 15, tuesday
0900
73°F
S
14 mph
1200
73°F
SE
15 mph
1500
73°F
SE
20 mph
1800
75°F
SE
19 mph
2100
75°F
SE
14 mph
September 16, wednesday
0000
75°F
SE
14 mph
0300
75°F
SE
14 mph
0600
73°F
SE
11 mph
Units of measurement: °C / °F